crypto: stm32 - remove bufcnt in stm32_hash_write_ctrl.

Commit "crypto: stm32 - Fix empty message processing" remove the use of
the argument bufcnt in stm32_hash_write_ctrl.
Hence, we can remove it from the function prototype and simplify the
function declaration.
Signed-off-by: Thomas Bourgoin <thomas.bourgoin@foss.st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/stm32/stm32-hash.c

@@ -286,7 +286,7 @@ static int stm32_hash_write_key(struct stm32_hash_dev *hdev)
 	return 0;
 }
 
-static void stm32_hash_write_ctrl(struct stm32_hash_dev *hdev, int bufcnt)
+static void stm32_hash_write_ctrl(struct stm32_hash_dev *hdev)
 {
 	struct stm32_hash_request_ctx *rctx = ahash_request_ctx(hdev->req);
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(hdev->req);
@@ -395,7 +395,7 @@ static int stm32_hash_xmit_cpu(struct stm32_hash_dev *hdev,
 
 	hdev->flags |= HASH_FLAGS_CPU;
 
-	stm32_hash_write_ctrl(hdev, length);
+	stm32_hash_write_ctrl(hdev);
 
 	if (stm32_hash_wait_busy(hdev))
 		return -ETIMEDOUT;
@@ -669,7 +669,7 @@ static int stm32_hash_dma_send(struct stm32_hash_dev *hdev)
 	if (rctx->nents < 0)
 		return -EINVAL;
 
-	stm32_hash_write_ctrl(hdev, rctx->total);
+	stm32_hash_write_ctrl(hdev);
 
 	if (hdev->flags & HASH_FLAGS_HMAC) {
 		err = stm32_hash_hmac_dma_send(hdev);